Needle Roller Bearings
NEEDLE ROLLER BEARINGS ARE AN ECONOMICAL ALTERNATIVE FOR APPLICATIONS REQUIRING MINIMAL SPACE TO CARRY A GIVEN LOAD AT THE DESIRED SPEED.
They can be an ideal choice because of their ability to handle a given level of speed and load capacity, yet have the smallest cross-section of all roller bearing types.
At Koyo we offer an extensive range of premium quality metric and inch needle roller bearings of Koyo.
• Radial Needle Roller and Cage Assemblies
• Drawn Cup Needle Roller Bearings
• Drawn Cup Roller Clutches
• Heavy-duty Needle Roller Bearings
• Track Rollers
• Thrust Bearings, Assemblies, Washers
• Combined Needle Roller Bearings
• Zero clearance ball and needle bearings for steering columns
• Needle Rollers, pins
• Seals
We have our own production facilities through Europe and special customized products are available on demand. Our needle roller bearings are suitable for several applications such as:
• Automatic Transmissions
• Manual Transmissions
• Valvetrain Components
• Steering Columns
• Automotive Accessories
• Drivetrain Components
• Power Transmissions
• Sport Vehicles
• Marine Applications
• Power tools
• Consumer products
• Mechanical Pumps
• Industrial Machinery
Radial needle roller and cage assemblies have a steel cage that provides both inward and outward retention for the needle rollers. The sizes are ranging from 3 mm to 165 mm bore (0.1181 – 6.4961 inch).
The designs provide maximum cage strength consistent with the inherently high load ratings of needle roller bearings. Accurate guidance of the needle rollers by the cage bars is allowing these bearings to operate at high speeds. Also available are needle roller and cage assemblies using molded, one-piece glas-reinforced engineered polymer cages. Needle roller and cage assemblies are manufactured with either one or two rows of needle rollers.
Applications
• Automotive and truck transmissions
• Agricultural and construction equipment
• Two-cycle engines
• Pumps and compressors
Features and Benefits
• Unitized design simplifies handling and installation while allowing for increased lube flow.
• Split and segmented designs allow mounting at difficult positions on crankshafts and gear shafts
• Controlled contour rollers optimize contract stress distribution
• Special manufacturing processes help increase roller fatigue resistance and minimize axial drift effects in critical applications.
• Optimized cage piloting geometry minimizes pressure velocity effects.
• Steel or polymer cages are available to suit your application requirements.
• Coatings are available to help avoid corrosion and improve wear resistance.